unlock network

‏Good evening, I am Abdullah, and I bought the iPhone 11 Pro Max from a store in America and when I arrived in Egypt I discovered that the phone does not work networks and I wanted to reach with your attendees a solution to this problem. I admit that I fell into a trap. This quorum that sold me the device but I have not yet  Any option whether pay the dues on this device to open the networks, I wanted to know the dues and the price for opening the device

[Personal Information Edited by Moderator]